Vending machine



Sept. 21, 1943.

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Sept. 21, J' JETS'ECK Er AL VENDING MA'CHINE Filed June 9, 1941 9Sheets-Sheet 2 sept. 21, 1943.

J, JETsl-:CK ET Al- VENDING MACHINE Filed June 9. 1941 9 Sheec's-SheetA5 Sept. 21, J. JETSECK El-AL VENDING MACHINE Filed June 9, 1.941 9sheetsfsheet `4 VENDING MACHINE Filed June 9, 1941 9 ysheets-sheet 5Sept. 21, i943. J. JETSECK ET AL 2,330,186

' VENDING' MACHINE Filed June 9, 1941 9 Sheets-Sheet 6 Sept 21, 1943 J.JE'VrVYsEcK ET'AL Y '2,330,186

VENDING MACHINE Filed June 9, 1941 9 Sheets-Sheet 8 Lfggza I5/6 7l f12%.

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vmmxne uAcnInE i .Filed June 9, 1941 e sheets-sheet s lfatnented Sept.21, 1943 Joseph Jetseclrna Fred w. Jaen, chicago, nl.. assgnors toLincoln Boyle Ice Company, Chicago, a corporation of DelawareApplication June 9, 1941, serial No. 391226 so claims. (Cl. 19-1o)invention relates to a vending machine for vending Aice or othercommodities that may be kept in an ice box'or store room 'or the likeand with coin 4controlled means for delivering dierently pricedpieces-ofice or commodities under predetermined conditions- Y --One ofthe objects of the invention consists in circuits land combination ofparts hereinafter deconveyed therefrom and .concerns itself primarilythe provision of coin controlled mechanism inwhich one or morercoins'canbe-used to obtain 'the same article. -For example, instead o f a dime,two nickels may be used, or instead of a f quarter iive nickels maybe-used.'

It is a-further object-of this invention to provide coin controlledvending mechanism which scribed and more particularly pointed out anddened in the appended claims.

vIn the accompanying drawings which illus trate a preferred formof thisinvention and in which similar reference characters refer to similarfeatures in thediiierent views:

Fig. 1 is airont elevational view -of the coin box involving thisinvention; I

Fig. 2-is a side elevational view of the coin chute-showing certaincontrol mechanism;

will-make properdelivery only Vin the event that the correct coin or thecorrect amount of coins has been inserted and that will return anincorcorect coin or an incorrect group of coins to the intendedpurchaser without any delivery of substance. Y v

It is a still 'further-object ofthis invention to provide means wherebythe coins inserted for a desired article will be returned if suchdesired article is not present or has been sold out, or if the machineis-vending. Y.

Itis also -an object of this invention to pro- Y vid means for returningall inserted coins if the electric supply used should be on?. Y

VIt is a furtherobject of this invention to provide a coin catcherinsuchan apparatus that will discharge the coins through diierent con- Itrolled outlets inaccordance with the set up of electrical circuits to`cause delivery or not to cause delivery of ice or substance. A Y

In accordance with this invention there'is provided a coin controlledset-up mechanism or accumulator that is stepped up one step for eachcoin unit preferably a nickel until it registers the price of a desiredarticle.` When the accumulator is thuswise set up under proper vendingconditions, the closing of a'switch-.will put the delivery motor fordelivery the desired larticle into circuit withthe set upaccumulatoreand after delivery of the article, the mechanism will 45 beautomatically reset and the 'coins dischargedi into the coin receptacle.A

It is characteristic f this invention that sub1 stantially alloperations are electrically and -of-thejinventionfwill become apparentas the description proceeds. i'

#Ehe-invention comprises the novel-structure.

Figs. 2A and 2B are sections showing-switches hidden in the main views;

Fig. 3 is a part elevational view and a part sectional view takenvertically through the coin Vbox substantially in the plane of acoinchute;

Fig.'4 is a horizontal sectional'view through the 'coin box taken in aplane above the coin chute and lookingdown;

Fig. 5 is a fragmentary sectional viewtaken transversely throughva coinchute; Y

Fig. 6 is a sectional view through the lower portion of a coin chute; yY

Fig. 7 is a fragmentary elevational view of one end of the Vcoin catcherillustrating thereset switch; i A

'Figa 8 is a top plan dev loped view of the Fig. 9 is an elevationalview of the rear of the coin chute structure;

Fig. 10 is a sectional view on the line I-i of Fig. 3 and Fig. 11;

11 is a sectional view on line H-H of Fig. 10;`

Fig. 12 isa part sectional view and part elevational view taken on theline I2l2 of Fig.` 3;

13 is a sectional view taken upon the line l-l'of Fig. 12; 1

Fig. 14 Vis a sectional view taken upon the line I-M of Fig. 3;

Fig. 15 is a fragmentary elevational view of Fig. 14 loomng in thedirection of the arrow; Figs. 16, 17, 18 and 19 are wiring diagram ofthe electric'- control system;

Fig 20 is a longitudinal view through an ice delivery Vmechanism takensubstantially upon the line 2li-200i Fig.'21'; and showing the switchunit for each delivery mechanism;

Fig. 21 is a-sectional view taken upon the line 2I-2I'ofFlg.20;

Fig. 22 is a plan view of supporting and operating'means for certainvcontrol switches of the deliverymechanism: A v

Fig. 23 is-an `elevational -view of the structure showninFlg.22;

Fig. 24 is an end elevational view showing parts in normal position; f

Fig.' 25 is a view similar to Fig. 24 showing parts in operativeposition;

Fig. 26 is a sectional view on line 26--26 of Fig. 22 showing one motorswitch;

Fig. 2'1 is a sectional view taken on line 21-21 of Fig. 22 showing asolenoid switch; and

Fig. 28 is a wiring diagram of the control circuit in the ice box. Y

In referring now to the drawings which illustrate a preferred form ofthis invention, it will be noted that the coin box consists of a metalcasing having a coin slot for nickels. a slot ||2 for dimes and a slot||3 for quarters. Below the coin slots, there is a swing rod or lever I|4 for opening the coin chutes and at the bottom there is a hand hole||5 for receiving returned coins. The mechanism in the casing isprimarily designed to control a plurality of ice or article vendingcircuits which emerge from the casing as indicated at l I6 and lead toanice box or storage room or the like as will later more fully appear.These vending circuits are established by a push button switch 43projecting from the front of the coin box. v

There are three coin chutes ||1, ||8 and ||9 for respectively receivingthe nickels, dimes and quarters (Figs. 3 and 4). The coin passeges inthese chutes are all similar and only one has been illustrated in Fig.3. When a coin is inserted inv a coin slot it enters a guideway |20 anddescends through a zigzag coin passa/ge |2|. Such coin passages are wellknown and the action and course of coins therethrough is also well knownand requires no description.

However, according to the present invention, a descending coin undernormal conditions strikes a switch lever |22 which has an L-shaped footv|23 (Fig. Y3) extending throughan arcuate slot |25 (Fig. 9) and is thenbent back as indicatedl at |26. This portion |26 extendsbehind a leafspring |21 (Fig. 3) for bringing the same into contact with'a secondleaf spring |28 for closing :the coin controlled circuit. These leafspring switch blades are connected at their lower ends to electricalconductors |2811l and |23a which are part of a normally live circuit.Each coin controlled switch is housed betweenthe rear end of a coinchute and a metal housing strip |30 attached to the rear end of the coinchute.

At its lower end, each housing strip |30 confines the usual insulationstrips |3| for the switch blades The different coins in descendingthrough their respective chutes will strike their switch levers |22 andmomentarily close their respective switches. It will, of course, beunderstood that the coins should singly be inserted in the com box. Aseach coin falls away from its switch lever |22, it.wi1l descend into acoin catcher |32 (Fig. 3) which consists of two converging swinginggates |33 and |34. The gate I33is designed to discharge the coin orvcoins as the case may be into a'coin receptacle |35 which is in theform of a drawer removable through the rear end of the casing. The gate'|34 is designed to discharge the coin or coins into a coin return chute|36 which leads to the hand hole I5 on the front end of, the box.lEachgate is attached at its upper edge to an oscillatable shaft |31journalled in the side plates |38 (Fig. 9) of the chute |35 and the coincatcher |32. Each shaft |31 has a crank |39 at one end and each crankhas a pin |45. The pin |40 on the crank of bar |31 supporting gate |34extends-through a slot in the core bar |4| of the coin return solenoid5|. The pin on the other crank extends through a slot in core bar |4| ofa coin dropsolenoid 85. The solenoid 6| is only energized when anattempt is made to obtain ice from an empty conveyor or wrong `coins orwrong amounts are inserted. The solenoid 85 becomes eiective at the endof a delivery operation. The two solenoids are suitably supported upon aplatform |43 upon one side plate |38.

These solenoids are suitably connected in coin drop and coin returncircuits through the electrical conductors |44, |45, |46 and |41, and asshown in the wiring diagrams later to be explained. Upon. the erid ofthe coin discharge chute |36 (Fig. 7) opposite the solenoids, there issuitably secured a reset switch U that consists of a blade |48 and ablade |45 suitably insulated at |50. Insulated fromn the blade |43,there is a spring arm |5| that extends adjacent a collar |52 fast onshaft |31 that operates the coin re- -turn gate |34. This spring |5| hasits upper end |53 inclined toward the collar for engagement by a screw|54 carried by the collar. Oscillation of the shaft |31 in a clockwisedirection will cause the screw |54 to strike the spring arm |5| forclosing the switch U. `The switch U is connected by suitable conductors|54a and |55 in a d reset circuit as will later more fully appear. It,

might, however, be pointed o'ut that when a coin or group of coins arereturned, the switch U is always closed, but the reset circuittherethrough is only established when an attempt is made to obtain anarticle from an empty conveyor.

Adjacent the bottom of the coin chutes II1,

H8, and ||9, there is a flatreciprocable bar |55 (Figs. 6 and A-9) whichis slidably supported in suitable slots in the side plates |51 thathouse the coin chutes. This bar has three spaced studs |58 in the formof screws, each extending adjacent a-coin chute. 1Each stud |58 isadapted for engaging a counter weight |53 on a rod |50 rotatablysupported in brackets .-|6| on the side of the adjacent coin chute. Theends of the rod are bent to provide prongs or fingers |62 and |63adapted to alternately enter apertures |54 and slots 64a, respectivelyin the walls of the coin chute; the slots |64a being at the bottom (Fig.3). One end, |65 of the bar |55 is adapted to be engaged by an armaturebar |55 (Hg. 9) pivoted at |61 to a frame! |68 of an electronet 3| whichis supported adjacent one of the side plates |51. A spring |55a attachedto the upper end of the armature bar |55 and the frame of the solenoidnormally urges the armature bar |66 away from the electro-magnet. Themagnet is normally in the live circuit of the machine and is effectivefor shifting bar |55 to the right away from the counter weights |59which will hence drop or hang down holding lingers |52 out of the coinchutes, and ngers |53 in' the coin chutes. It will be noted that lingers|53 slope downwardly and enter slots |54 in the lower end of the chutein a coin path removed from the ngers |62.

When the bar |56 is in its normal position under the influence of theelectro-magnet 3|, theV coins canfollow their normal path into the coincatcher as the ngers |62 are held out of their 'new grip.

'.chutes. However, if the live circuit in the ma'- chine should fail ornot be on. a spring..| connecting the bar |56 with the left hand sideplate |51. wm slide harias to. the left and causing studs |58-to engagethe counter weights |59 and rotatethe rodsv |60 for causing fingers |62to Inoveinto their respective coin chutes in which positions the lingers|62 will, deect thevcoins and cause the same to drop into the coinreturn chute |36; In referring to Fig. 3, it will be noted that thecoins may drop down on either side of.

the swivel block |1'I, when they are deected by lingers |62'andLwhen-they drop down the right hand passage, they fall directly intothe 'I coin chute |36 and are returned to the customer.

Thus. a protection is provided against a customer losing his 'money whenthe live. circuit is oi. A

When a nickel is inserted in the nickel coin slot, it will close itsswitch |21|28 (Fig. 3)

which is in a circuit that leads to a step up electro-magnet 40 (Fig.11) for energizing the same, f or'attractlng an actuating' armaturelever |13 which is piVoted at |14 to a metal frame |15 adjacent one endof suchlever. The forward end portion of the lever |13 is adapted toengage a ratchet wheel |16 .which is secured upon a shaft |11 whichcarries a selector oraccumulator arm 42 adapted for engaging contactpoints |19 wall- |84 as indicatedat |99 while the other end -is.anchored to 'the Ashaft as 'indicated at 2li.

This spring will rotate the shaft to reset position.

When step up magnet ,40 has actuated bar |13 one step for rotatingratchet wheel |116,

shaft |11 and selector arm 42, one step, the said arm 42 will engage the5 contact point. Now.

if the reset circuit through wire 52 is established as will laterappear, magnet 55 will be energized for attracting bar |9| forreleasingholding pawl |85 and allowing shaft l11to rotate arm 42 back tothe zero point on the selector -plate 50. In

order to -stop the resetting or reverse rotation of shaft |11, a stud20| .on ratchet wheel engages a hooked end on a stop bracket 202attached to the wall plate |84.-

(Flgs'.A 4 and 11). on a selector or accumulator plate 50 made ofinsulation and attached by posts.

|80a to a support or wall plate |85. The rear endof the 'actuating orstep up lever |13 has attached thereto one end ofA a coil spring |8i;the other end of which is attached to an adjustable screwr |82 supportedon the frame mem'- ber |15. 'Ihis spring `normally tends to swing thelever away from the magnet. 'A Spring, |93

Two switches A and C are controlled by the reset magnet A55. The switchVA consisting of plates 203 and 204 is normally closed while the lswitchC consisting of plates 205 and 206 is normally open. The switch plates203'an`d 205 have' tail portions connected by an insulated tie 201.'I'he outer portions of the bladesare comined between insulation' strips208. From'these in-' on the frame enclosing the set up mechanism.

attached tothe forward end of the step up lever- |13 isanchored to thewall 84 of the metal frame and aids in lifting thestep up lever fromtheratchet wheel and also moves-it laterally fora A springpressedholding pawl |95 pivote'd at |95a and connected at its'tail by spring[95h to casing |15 normally holds the ratchet against reverse rotation.

The selectorarm 42 rotates against a stationy aim-conductor ring |85-which is insulated from the shaft |11 as indicated at, |86and whichsurrounds the shaft. 'H115 ring |8515 in electrical contact'` withaspring pressed plunger VIllli which extends through the selector plate50 from a binding DOSI; |89 to which an electrical conductor isconnectedaswiil later appear.

It might inentionedthat the distance between a paigof vcontact points|19 represents one step of lever I2 as effected `by one impulse producedby a live cent value of coinage. In referring to Fig. 4, it. wlll benoted that there is a zero contact point a 5, 10, 15, 20, and 30 ontactpoint adapted to be contacted by arm 42. It wlll further be notedthatcontact points 5, "..and are connected by a wire |89 which in tlu'n isconnected to a wire52 which is in areset circuit leading toelectro-magnet 55 (Fig. 10) which attracts anjarmature bar 9| which ispivoted on' sprong y|92 on the casing |93 of the magnet 55. This barengages a'tail piece |9B rigidly l.secured to the spring held holdingpawl |95'which engages theratchet wheel |16. A spring' |90 connects thetail end of bar |9 which,

'it is noted,3. projects beyond the prong |92 to a support |91..

-A coil spring |98 (Fig. 11) surrounds the shaft |.11 .1 .One end of thespring is anchored to the extends through this housing and supports aino- These' blades are L-shaped and the blade 209 is longer than theother forengagement by a stud 21| on theshaft |11, ora collar on suchshaft. 4, Vit will be noted that in zero or reset position, switch VB isnormally open.v However, the rst step up of ratchet |16 will rotateshaft 11 in a counterclockwise direction as viewed in Fig.

4, and cause the Stud 2| to move away from .blade 209 anni allow theswitch to close. It might be mentioned that ,switch B will remain closeduntil the 92 is reset to'zero, or in other words, when shaft |11 isrotated by |98 during 'the resetting operation to initial position. VIt

might also be mentioned that each successive nickel inserted will causeselector or accumulator arm 42 to advance another step until the limitis reached.

When.adimeisinsexte'dinthesmachinemech-v anism will be broughtintooperation to impart two step ups' to selector arm 42. To accomplishthis, it isV necessary to send two successive electrical impulsesthrough the set up circuit to inagnet 40. This is accomplished asfollows:

Ahousing2|2 (Figs.4and9) isattachedto one side of the coin chutehousing. A shaft 2|3 tor drum 68 adjacent the inner side of the hous-Electrical spring conducting` fingers 61, 92,

drum. The shell of th drinn ismade-of conductive metal and the surfaceof the drum between the ngers 61v and 59 is covered with' insu- 14 and69 yieldingly engage the surface of the lation. The lingers 61 and 69ride'over the unin- I sulated margins and-are in circuit while the in-`termediate lingers 92 and 14 ride over the 'lation which is, however,provided with 2 succes'- sive bald contact Spots 68a (Fig. 8) whichunder linger 14-for two successive im. pulsos to finger 14, andivesuccessive bald oontained by bracket 228.

when a quarter or its equivalent is inserted in the machine. 'I'hesefingers are held in an insulated clamp 2| 4 attached to the housing 0fthe coin chutes.

When the drum 68'has made substantially a' revolution, the linger 69will drop into a cut out 68h and break the' current through the drum.

VRotation of the drum shaft closes an over ride switch Ikthroughaneccentric 2| 5 (Figs. 2 and 4) It might be mentioned that this switchsupplies current to the motor and drum for a. moment to cause the drumto ride the finger 69out of the l5 cut away 68h at which time switch Iwill automatically open. The drum 68 is rotated by a small motor 12which is supported from the housing 2|2. The drum shaft 2 I3 carries agear 2|1 which is connected by intermediate gearing 2|8 and 2|9 to apinion 220 on the amature or rotor shaft 2|6 (Fig. 4) of the motor 12.7,

. The circuits to the motor 'I2 and the drum 68 and coils and thecircuits from the drum to the step up coil are controlled by certainmagnetically operated blade switches which will now be described:suitably 'supported upon one 'side of the housing of the coin chute isthe l0 and 25 magnet (Fig. 2) from above which hangs a bracket 22| whichsupports four insulated switches E, G, and D andV F, which are in backof E and G and are shown in Fig. 2A.` The switches G 'and F are normallyopen while the switches D and E are normally closed. Each switch as ablade 222'extending through a slot in a plate 223 which is attached to aat bar 224 at substantially right angles thereto and rent through magnet25 to keep italive under certain circumstances.

In Figs. 12 and 13 are shown three sets of switches for shutting oif thecurrent from the delivery circuits and establishing circuits through 4the coin return solenoid. The switches J, M and P are normallyclosed'while the switches Q, S, 'and 'l' are normally open.

In referring to Fig. 13, there is shown a sectional view whichillustrates the construction of the double switches P and T, M and S,and J and Q, which are alike. Each d ouble switch has a central blade235 which extends through a slot in a shift bar 236 which is carriedby`a. bracket 231 fulcrumed upon a fulcrum member 238 adjacent the frontface `of the 25 electro-magnet. A coil spring 239 attached to the bar231 and a stud 240 supported by the frame of the electromagnet serves tonormally shift plates 236 and 231 for closing switch P.` When the'electromagnet is energized through the closing of a. 'switch at thedelivery conveyor when such conveyor is empty, the plate 231v will beattracted for opening switch P and closing switch T. It might bementioned that any of the switches Q, S or T is adapted to establish acircuit with the coin return circuit through switch U for returningcoins put in the machine for a product sold which `extend adjacent thepole of the electromagnet I0 and 25. This bar 224 is fulcrumed upon acurved support 225 supported by bracket 22|. A spring 226 attached tothe free en`d oliv the flat bar 224 is anchored to a support 221thereabove. This spring normally urges the plate for closing switches Eand D and opening switches F and G. It will benoted that switches D andF have a common blade 222 which is shifted for closing one switch andopening the other. When the electromagnet is energized, the bar 224 willbe attracted for shifting plate 222 Vfor opening switches D and E andclosing switches F and G, which control the current to the motor andmotor drum.

Supported upon the frame 2|2, is the 25 electromagnet which controls'.three switches designated H, N and O. The switch N is behind theswitches H and O, and is shown. in Fig. 2B. The spring blades that formthese switches are supported in insulated position by a bracket 228suspended from the 25 magnet. Each switch has an extended blade 229which extends through slots in. a shift plate 230 attached to a. iiatarmature bar 23| fulcruined upon a support 232 susto the free end of thebar 23| and to 'a support 234 tends tourge the bar for closing switch H.It will be noted that switches N and O have a opens the other. Theswitch H is normally closed while the switches N and O are normallyopen. However, when the 25 magnet is energized and bar 23| is attached,swtzh H will be opened and switches N- and O will be closed. Switches Hand 0 control the current fromthe motor drum to the resetting mechanismwhile switchN feeds cur- A spring 233 anchored Vcommon. Yblade 229 thatcloses one switch and out or missing.

The fourth set of switches K and L shown in Fig. 12 are normally openand are adapted to be closed by a relay reset R which is adapted to beenergized after each delivery of an article for closing switches-K andL, one for establishing a circuit to the reset magnet 55 and Ythe otherfor establishing a circuit to the coin drop solenoid 85. These switchesare opened and closed by a shift plate 24| (Fig. 3) attached to anarmature bar 2112 in a manner similar to the other switches.

In Figs. 14 and 15 are shown the circuits connecting posts or sockets inthe coin box from 'certain ones of which the circuits are led to pointsb eyond the com box and in or adjacent an ice-house or storage placewhere the delivery conveyors are located. As such circuit posts are old,they need not be described. These circuits are described in connectionwith the wiring diagrams shown in Figs. 16 to 19 to which reference willnow be made.

In order that the wiring diagram may be clearly understood, it is shownin four sections or figures. The wires of one section. may be providedAwith plugs to t into sockets in the other nsection. -Thus the numeralsI8, I9 and 20 in Fig. 16'may represent posts or plugs that litrespectively in sockets Il, I8, I9 and 20 in Fig. 17. Likewise, thenumerals 2|, 22, 23, 24, 25, and 26 in Fig. 19 may represent posts orplugs tting in sockets 2|, 22,23, 24,' 25, and 26 shown in Fig. 17.Likewise, the two rows of posts or plugs to 8 and 9 to Y I4 in Fig. 18are adapted to lit the correspondingly'` designated sockets shown inFig. 17. 0I course, the plugs .and sockets on the diierent parts maybereversed, as it is immaterial which part has the plug and which partcontains the socket.A

In vreading the diagram, the four sections will.

assenso best be described from the wiring diagram, Figs. 16 to 18 and inreferring to these ilgures, it will be observed that there is normally alive circuit inthe coin box; Y The posts I and 2 constitute the terminalposts for the incoming and outgoing current from a city main, thevoltage of which may be reduced by a transformer (not shown).

The current entering at .post I will ow through wire 2'I to post I9 andfrom post I8 (Fig. ,16) through wire 29, normallyclosed switch D,` wire,39, magnetic rejector 3i. and wire 32 to post 20,

which is connected by wires 33 and 34 (Fig. 17) with post 2 the opposites ide of the power. This might be termed a' normally permanent circuitand a nickel or a quarter. Iil'other amounts or variations in numbersare inserted, they will be returned as will now be described.

coin return Assume that a single nickel is inserted in the nickel chuteand momentarily closes the switch through wire 29, switch 35, wires v36and 31, to post I 'I. From post I'I, the current will ow through wirev38 (Fig. 17) to post I0 and from post III through wire 1 39 (Fig. 18)to and through magnetic set up coil- 35 (Fig. 16) the current will flow40 and hence through wire 4Il to post 2 which is the opposite side ofpower. vAs the current passes through coil 49, the accumulator orselector arm 42 will-be moved one step from zero to point 5 and switch Bwill `be closed. If -push button switch 43 is now pushed into operativeposition for closing the circuit between `posts 23 and 26, the followingresult will be obtained. The cur- 'rent from post' I-will ow throughwires 21, 28, A switch D and wire 30to post I9 (Figs. 16 and 17). Frompost I9, the current will flow through wire 44 to post 23 and from post23 through wire 4 5, switch 43 and wire 46 to post 26 (Fig. 19). Thispost 26 is connected by wire 41 with post I3 (Figs. 17 and 18) From postI3 the current ows through wire 48 'and normally'closed switch A andvthen through wire 49 to center 50a of accumulator or selector plate 59which consists of insulating material.v From center 50a' the currentwill ow through step up arm 42 to No. 5 contact with wire..

point which is connected by wire 5I 52 whichleads to post I4 (Fig. 18).

From post I4, the current iiows through wir 53, and switch B which wasclosed bythe rst step up of arm 42 and then through wire 54 and magneticreset coil 55 to wire 4I and post 2, the

Passage of current opposite side of power. through magnetic reset coil55 will reset selector or accumulator arm 42 to zero and close switch Cand open switches A and B. Current may now pass from post I through wire56, switch C, wires A 5l and 53, switch B, which has an opening lagbehind the closing'of switch C, wire, 54, and magnetic reset coil'55 towire 4I and post 2. Thus the vmagnetic coil'55 is again energized toeect complete resetting in the event that this was-not fullyaccomplished in the rst instance. When l coil 55 becomes dead throughopening of switch B, switch A will be closed and switch C opened.

The push button switch 43 is still being held I in place while the'selector arm 42 'has dropped arm at the 'zero point, and switch Aclosed, current entering the center 50a .ot the accumulator plate 50will owthrough arm 42'to zero point' and then through wire 59 to post II(Fig. 17). From post II, the current will flow through wire 59 (Fig. 17)to post 24 (Figs. 17 and 1 9) and from -post 24, the J ent willflowthrough wire 60, solenoid return c i16I and wire 62 to post 2I which isconnected to post 2 (Fig. 17), the opposite side of power. I'hepassageoi curent. through coil 6I will cause the operation of the.

return side of the coin catcher for returning' the coin to theaccessible hand hole.` '121e push but# ton .switch may now be withdrawn.

Ii the improper number'oi three nickels 'were' inserted in the machine,there would bev three successive impulses impartedv 'to the accumulatorarm 42 that wouldstep the same 'up Ai111@ the '15 point. Thatis eachnickel would causeon'e im: pulse to arm 42 in a manner'abovev described.'I'hen if push button switch 43 were inserted, the same peration wouldoccur just ,as if a single' nickel had been inserted exc'ept that thecurrent from the center of the accumulator would now ilow to 15 pointand then to wire `52 because' arm 42 has been steppedup to point I5lwh1ch 'is connected to wire 52 and the three nickels would' bereturned as eXplained for asingle'nickel.

If more than 25 were inserted in the machine,

say 30, there would be sixsuccessive impulses imparted toaccumulator'arm 42 that would cause the same to rise to its limitatrtnegaoemark. Then if push button switch 43 vwere manually' closed thethirty cents would b e' returned as in the case ofthe single nickel; Inthis case, however, the current from the center'of the accumu. latorwould be conductedto the 30 point which is in circuit with magneticreset 'wi're 52 and 'reisetting and return of the'coins would beeiiected in a manner already explained.

It might be mentioned that 1f instead o'f three nickels, a dime andanickel were inserted, the accumulator arm would be given three'impulsesas will later appear to -bringthe same to the 15 point and thethreenickel operation as above described, would be repeated forreturning the coins. f

It will be noted that thet,- 15' andi30 con;

v'tact points on the accumulator or selector are allconnected withthereset wire 52l and vhave'no connection with the motor control wires andas a1 result the insertion of improper 'coinage "will produce no'delivery of ice .or merchandise will cause a return of such coinage. 'i

Operation whenpropcr coincer-e insertedf...

To secure a 10 purchase, two nickels may inserted or a dime may be'inserted in the chine. 'I'he dime will produce twoimpuls'e's on' tlieaccumulator arm' in a manner thatwill appear.

We have already vdescribed' l1ow"the'insertion of a nickel in the nickelslot will cause accumulator arm 42 to rise one step.l Now the insertionsrgcond nickel will'simply repeat the oper-af;A

the rst nickel and cause the accumulator;

of a

tion o arm 42 to make a second` step which bring the same to the .10contact Point. f L .Y L

If, on the otherhand, a-zdim e were. ins

in the ten cent not' instead of twcnickeigthe mechanism would be brought-into operation that would produce two successive-steps to accumu latorarm 42'which would cause the sameto -be' back to zero. With the'accumulator or selector l 7 5 stepped up to the 10 contact point justasin thel case of two nickels. Just how this is accomplished will now beset forth.

If a dime is inserted in the ten cent slot to close the switch 63, thecurrent will from post I8 through wire 28 coin switch 63,- wire 64,relay coils I and 25 towires 65-32, post 20 and wire 34 to post 2, theopposite side of power. As the current passes through relay I8 and 25,the switches D and E will be opened While the switches F and G will Vbeclosed. The current will lnow ow'from post I8 through wire 28 Vandthrough switch F to wire 66 which leads to finger 61 on motor drum GI-lFrom finger 61 on motor drum. the current will pass through the shell ofthe drum to nger 69. It will be remembered that fingers 61 and 69 arenormally in electrical contact with the metal shell of the drum whichserves as a conductor between the two remote ngers 61 and 69. Thecurrent emerging from finger 69 will iiow through wire 18 and throughswitch G which is now closed fand then through wire 1I to motor 12. Frommotor 12, the current iiows through wire 13 to wire 65-32 and f post 28and back through wires 33 and 34 (Fig. 17) to post 2. Incidentally, thecurrent passing,r through wire 10 will split with a part going throughrelay ID and to wire 65 in order to keep the relay I0 and 25 alive tomaintain switches F and G in closed position for two im pulses.

With the motor 12 energized and running by the current now passingtherethrough, rotation w'lll be imparted to drum 68. The drum has twosuccessive bald contact spots 68a under the intermediate finger 14 andpart of the current passing through theY drum will emerge through nger14, wire 15, and closed switch H to wire 16-41 which go to post I1 whichis connected by wire 38 with post I0. From post IIJ, the current passesthrough wire 39, step up coil 4I) and wire 4I back to post 2, theopposite side of power. As coil 48 isenergized, it will causeaccumulator arm to be stepped up one step and cause switch B to beclosed. Further rotation of drum 68 will cause the next bald contact 68ain line to pass under nger 14 and impart a second impulse through thejust mentioned circuit for imparting a second step up to accumulator arm42 to bring the same to the 10 contact point just as was accomplished bytwo nickels. After delivering these impulses, the drum will rotate thecut out 68h under nger 69 and break the drum, motor and relay circuit,and reverse switches E, D, F and G, Switch I is an over ride switch thatis closed by the rotation of the drum and kept closed untiljhe cut out68h rotates beyond the nger 69 substantially into the position shown inFig. 16. The-breaking of the circuit through the drum would immediatelycut out the motor if it were not for switch I which provides the currentto the motor until the drum overrides the nger 69 or causes it to rideout ofthe cut out, at which time the switch I opens and the motor anddrum stop.

Thus, it will be evidentV that the accumulator can be set for deliveryof a 10 article either by the insertion of two nickels or a dime and it,makes no difference with respect t'o subsequent operations which coinswere used as long as the accumulator arm 42 is moved into contact withthe 10 contact.

With the accumulator the 10 contacten the plate 58, deliveryof a 10commodity or piece of ice can be eiected by pressing in the push button43 to indirectly put the 10 delivery motor or apparatus in operation.With the push button switch 43 closed under such conditions the currentwill flow from post I to `post I8 and hence through wire 2B and switch-Dwhich is now closed to wire 30. Wire 3U will carry the current to postI9 from which it will pass through wire 44 to post 23. From post 23 thecurrent will pass through wire .45, switch 43 and wire 46 to post 26which is connected by wire 41 with post I3. 4From post I3, the currentpasses through wire 48, normally closed switch A and wire 49 to center58a of accumulator. The current is then conducted from such centerthrough the accumulator arm 42 to Contact point I0, and from 10 contactpoint, the current will ow through wire 'I1 and closed switch J, wire 18to post-3 which connects with the control box of the 10 article deliverymotor Ibeyond the coin box.

The delivery of the desired article will eiect the closing of a mercuryswitch that will put post 6 and wires 19 and 88 in circuit. vIt will benoted that wire 80 leads to reset coil R which closes switches K and L,part of the current passing on through wire 4I to post 2. the oppositeside of power and part passing through wire 8I and switch L and switchB, and resetting coil 55 and wire 4I to post 2. This energization of theresetting coil 55 will reset the accumulator arm 42 to zero and closeswitch C and open switches A and B. Current from I will then passthrough switches C and B and coil 55 to assure complete resetting.

Part of the current passing through wire 8l will go through switch K andhence through wire 82 to post I2 (Fig. 17). From post .|2, the current'passes through wire 83 (Fig. 17) to post 22 and post 22 is connected bywire 84 with the solenoid 85 (Fig. 19) which operates to discharge thecoin or coins into the coin drawer. The current then returns throughwire 62 to post 2l which connects with posit 2, the opposite side ofpower. Thus, it will be apparent that the machine is cleared and resetat the end of each vending operation and ready for a new customer.

arm ,42 stepped up to To obtain a 20 purchase of ice or commodity, fournickels may successively be inserted in the ve cent slot or two dimesmay successively be inserted inthe ten cent slot. Either of these groupsof nickels or dimes will cause the accumulator arm' 42 to be steppedupto the 20 contact point. The Amanner in which a plurality of nickelswill step up the accumulator has already been described. It has alsobeen pointed out how a single dime produces two successive step ups onthe accumulator arm 42. 'I'he insertion of a second dime will merelyrepeat the operation of the first dime and impart two further successivestep ups to the accumulator arm to eventually bring it to the 20c point.

With the accumulator arm set at the 20 point, the machine is in positionfor the closing of the push button switch 43. If the push button switchis now closed, a circuit to the center 59a, of the accumulator plate 50will be established in a manner already explained and requires no fur.ther explanation. With the circuit establish/ed to the center of theaccumulator, the current will ow through arm 42 to 20 contact point towhich wire 86 is connected. The current will flow through wire 86 andnormally closed switch M to wire 81 which leads to post 4 which in turnis connected by a wire 88 controlling the operation of the 20 deliverymotor.

At about the end of the delivery of a 20 purchase, thecircuit Vthroughwire 19, post 6 and and close switches F and G.

- closing of the wire 39 will again be establishedfas previouslyexplainedto lclose switchesK .and Land reset the accumulator arm toze'ro and open switch B and to also cause the operation of the solenoidcoin return for dropping the coins from the coin catcher to the regularcoin box as already explained. Atthis point, the apparatus is incondition for further purchases.

' To secure a 25 purchase, ve nickels or two dimes and a nickel or aquarter may be used. The successive insertion of ve nickels. will stepup the accumulator arm 42 to the 25 contact point in a manner alreadyexplained. The successive insertion of two dimes and a nickel will alsostep up accumulator arm 42 five steps to the 25 contact point in amanner already explained in connection with the use of nickels and dimespush hutten wiccanA will brng current to the center Ella oftheaccumulator as previously explained. From the center of the accumulator,the current will be* conducted. through accumulator arm 42 to 25 contactpointv to which wire 94 is connected. Wire 94 leads to .normally closedswitch P from which the current isv conveyed through wire 96 which inturn leads to post 5 whichzis connected by wire 95 (Fig. 17)

that Vshould-now be understood.A So the use or insertion of a quarteronly needs to be described in connection with a 25 purchase.

Now the insertion of a quarter in the coin box wilLclose the 'switch asrepresented in Fig. 16', by the reference 89. This will complete thecircuit through wire28 and wire 96 causing the cur--A rent to passthrough relay to wire 65 to post 20 and hence through wires 33 'and 34and post 2 to opposite side of power. As current passes through relay25,' the switch H will be opened andthe switches N and 0 will be closed,'inducing current to pass through wire 9| and switch N to wire 19 towhich switch N is connected. The current, passing through wire 10 willgo through relay llljand 25 an'd emerge through wire 65.

passes through `wire 1| to motor 12'and out through wire 13 to returnwire 65 which is connected to the opposite side of power as already Yset forth.- Part of the current from finger 69 will also pass throughwire 9|, switch N and relay 25, to keep switch O closed.

modity but that automatically closes when there 1 contact point on theaccumulator will now pass through switch Q and then to wire |02 whichvis connected to `such switch. The wire e As the meter 12 is newenergized by the cur- Y rent, it will operate to rotate drum 68 forcausing ve successive impulses of current through linger 92V on accountof the ve contact spaces, and wire se which leads to switch o. Fromswitch O the current. passes through wire A16 and wire 31 to post I1which is connected by wire 36 with post qIl).` VFrein post l0, thecurrent passes through wire 39 and set up coil 40 to return wire 4|. Theset up coil 40 will be'energized and will impart one, step to theaccumulator arm 42. The

further rotation of the drum will impart through vthe spaced bald'spots68a under nger 92 five successive impulses of current through the cir-Vcuit 92, 93, '31, 38 and 39 to set upcoil 49 which causes accumulatorarm 42 Vto be stepped up ive .in'mes into contact with the 25 contact.Thereafter, the motor, drum and relays 25, Hl'and 25 kwill be cut out aspreviously explained-when the with the control for the 25V articledelivery motor., After the delivery of. the 25 'articleVthe apparatus isreset through the `completion of the resetting circuit passing from post 6 as previ-f ously expl ed and the coin is causedto b e dis'-charged in tacle or drawer.

While the present machine'is designed forwvending three diierentlypriced articles, iscontemplated that the number maybe creased.

For this purpose, there are shown on the diagram L i vacant posts91 and98,99, Il and I6 vfor addi# tional circuits which may be added.

The 'apparatus has prvision for cutting each motor delivery circuit withrespect to the accumulator or selector when there is no ice or commodityon the delivery lconveyor operated by such motor. To this end, there isshown a 1 0, 20 and 25 coil for respectively openingswitches J, M and P,which control the motor control circuits. The circuits controllingAthese 10, 20 and 25 coils will now be described.v

Them er 1o ecu is connected to a wire'lon which leadsto post 1. Frompost 1 there extends a wire |0| (Fig. 17) that leads to a switch 263that is normally kept open byv the'10 com is no commodity on thedelivery conveyor. This closing of the switch will send current throughwires ||I|A and |96 to energize the 10 coil for i opening switch J andclosing switch Q: the cur` rent passing through the'10 coil returning`through wire 4| topost 2 the opposite end ol' Now with accumulator.Consequently, current from the m ie'eds to wire 5s and post n whichleads to return circuit already post 24 and the solenoid described. l c

-As a result, ii.' 10 is now inserted inthe coin box when there is noice or commodity on the `10c delivery conveyor, the accumulator will heout .from the ten cent delivery circuit and is in circuit with the. coinreturn circuit through switch Q. `Gonsequently, closing of the pushbutton -switch'43 will cause the returnv oi the 10. For when the pushbutton' switch is closed the current that is led to the center of theaccumu-S lator as previously setiorthwlll go` to contactpoint I0 thenthrough wire 11,'swi-tch' Q, wires |62 and 58 to post Il, from post-|through wire 59 to post 241 and then through-wires/fllt and coil 6|.return wire A62 toA post 2| andthen through n nger 69 drops into the cutout'68b. Of course,

the overrideY switch I always comes into play to cause the drum torotate the linger 69 in overriding POSto With the accumulator whichservesalso as a selector for the delivery circuit now set for a 25purchase, the push bua-.cn 4a should be pressed in to complete thearticle delivery circuit. The

wire 34, to post .2.

When switchU isclosed, an accumulator reset circuit isl establishedthrough wire 60, switch U, wire |98, post 25, wire |69, I4, wire 53,switch B, wire 54, reset coil 55 towire 4| andA post 2. Energization oicoil 55 willreset accumulator, to zero and open switch B. Y

the regular coin 'receiving recepswitch J open, the ao delivery eiri.cuit and motor are cut outewith respect` tothe Energization oi coil 6|will operate coin return gatel34 and clos'e switch U.

The 20 articles on the 20d! delivery conveyor tion puts wire |05, post 9and wire |06 incircuitwith the 25 coil for opening switch P and closingadiacent switch T. The current from the 25dl coil passes through wire 4|to return post 2. Thus, it will be evident that the absence of acommodity on any of the delivery conveyors will result in cutting outthe motor circuit thereof from the accumulator and putting the coinreturn circuit in circuit with the accumulator so that the closingof thepush b utton switch will merely cause the inserted coins to be returnedto the Would-be purchaser and the machine to be reset through switch Uand connection therefrom to coil 55. Y

All of the switches Q, S and T are connected with wire |02 that leads towire 58 and post which is in the coin return circuit as has beenpreviously set forth. Switches Q, S and T are also respectivelyconnected with the 10, 20 and 25 contact pointsnon the accumulatorthrough the respective wires 11, 86, and 94. So closing of the pushbutton switch with any or all of the switches Q. S and T closed and theswitches J,

M and P open will merely complete the coin re turn circuit for returningthe coin or coins and reset the accumulator. Y

In the present instance, the machineis designed for vending blocks ofice and in referring to Figs; 20 and 21, it Will be noted that threedelivery mechanisms are shown, each comprising an endless conveyor 244having upstanding studs 245 for engaging behind and propelling theblocks of ice or whatever commodity is handled. Each delivery conveyor244 is in the form of an endless chain that travels around a headsprocket 248 and a tail sprocket (not shown). Each sprocket 246 ismounted upon a separate shaft 241. Each shaft 241 is suitably journalledin suitable bearings 246a upon short posts 248. Each shaft '241 carriesa sprocket wheel 240 at one end o er which are trained endless sprocketchains 25 These sprocket chains are respectively geared in any approvedmanner to motors 25|, 252 and 253 supported upon a longitudinal topframe member 253e of the commodity holding compartment. The motor 25|drives the conveyor for the 10 piece of ice. 'Ihe motor 252 drives theconveyor for the 20 piece of ice while the motor 253 drives the conveyorfor the 25 piece of ice.

The cakes of ice are supported at their lateral edges upon tracks 254which are in the form of angle bars, with the lower lateral corners ofthe ice fitting in the angles of the bars. Itlwillbe noted that theconveyor chains are centrally arranged of the ice blocks and are adaptedto slide them along uponthe tracks.

At the forward end of Aeach track there is a chute 255 to which theblocks of ice are conveyed for descent by gravity to the purchaser. Aseach block of ice passes from its tracks, it swings a door or panel 256hinged upon a rod 251, between n' this lever is adapted to engage underthe forward block of ice; the other arm 26| b supports a mer- Yand e totheirl original positions, as shown in 4 the front frame members. Uponeach door there Y is a support 258 for sustaining a mercury switch. 259.Only one of these panel doors is shown, but it will be understood thatthey are all similar and similarly located. This mercury switch curyswitch 263 (Fig. 20). These mercury switches are respectively in circuitwith the 10c, 20 and 25 electromagnets. When there is no ice orcommodity on a track the switch lever 26| thereunder will tip and closethe switch to energize the electromagnet with which the switch isconnected. For example, the mercury switch under the 10c commodity willcause energization of the 10c electrmagnet for disconnecting thedelivery circuit and establishing the resetting circuit through switchU.

It will be understood that the vending machine consists of a plurality,three in the present instance, of vending units. Thus the mechanism fordelivering the 10 commodity may be termed a unit. Likewise, thedifferent mechanisms for delivering the 20c or 25 commodities constitutesimilar units. Each such vending unit is controlled by a set of mercuryswitches shown in Figs. 22'.,to 27. Only one set of switches for asingle unit is shown as the other two sets are identical. 'I'hesemercury switches which are designated a. b, c, d, and e are respectivelymounted in suitable clamps 264 which are rigidly secured to anoscillatable shaft or support 265. An arm 266 extends from the shaft 265as shown in Figs. 24 and 25. This arm extends into a slot 2 61 in thelower end of a solenoid core rod 268. This end of the arm 266 isprovided with a slot 269 through which a pin 210 passes for looselycoupling the ro'd to the arm and shaft 2265i A coil spring 26| attachedto an arm 212 on the shaft 265 and to an anchor 213 on the switch board214 tends to hold the shaft in adjusted position. A stoppin 215extending from a -bracket 215 on the switch board limits the upwardmovement of arm 266 as shown in Fig. 24.

'I'he solenoid rod 268 extends through a starting coil 30| which whenenergized operates to rotate shaft 265 to thev position shown in Fig. 25for closing switches a, b, c, and d, and opening switch e. When switch dis closed, a. current is established through the stop coil for drawingrod 268 Iupwardly and returning switches a, b, c, d,

Fig. 24.

The circuitv for controlling these mercm'y switches and the starting andstop coils are shown and explained in connection with the ten centcircuit in the wiring diagram, Fig. 28 to which reference will now behad.

In referring to the wiring diagram in. Fig. 28 which shows the circuitsfor controlling the three delivery units, it will be assumed that 10cents has been deposited in the coin box and the push button switch 43has been closed. Under such conditions, current ows from the 24 voltwire la through the coin box and out to point #3 (Fig. 28); From pointor `post #3, the current flows through wire 300 to starting coil 30| inten cent control box and out through wire 30Ia to wire 2a. 'I'heenergization of the starting coil 30| will operate through shaft 265 toclose .l

25| as follows: Current now will flow from the 110 volt wire throughwire302 to switch a, and from switch a, through wire 303 to track motor 25|.From motor 25| the current returns through wire 304 and through switchb, and from switch b through wire 305 to opposite sideof power of 110volt circuit.

While switches a, b, c,- and d are closed, switch e is open which shutsoil the electric power to the coin box so that all coins inserted in thecoin box during the delivery of ice will be rejected. The circuitthrough switch e leads from 24 volt wire la through wire 306 to switch eand from switch e through wire 301 to switch e of the and units. Fromthis switch e in the 25 unit, the wire 308 leads to post |A whichconnects with the live circuit in the coin box. Consequently when thiscircuit is open, as just described, the current in the coin box is shutoi and all coins inserted will be rejected.

When switch c is closed a circuit between the gate switch 259 (Fig. 20)and the coin box reset relay R is established. For this switch c isconnected by wire 309 with post 6 which connects with reset relay R inthe coin box as previously set forth. The return from the switch c iiowsthrough wire 3|0 to wire 3|| and hence to wire 3|2 to the gate switch259. This gate switch 259 is connected by wire 3|,3 with 24 volt wire|a. Thus, the closing of switch c will establish the current through thegate switch and limit the ow of current to the ,coin box to one impulseirrespective of any' swinging movement of gate in 10 control box. A wire3|5 leads from thel *reset and causes the coins to be dropped into thecoin drawer; second, the mercury switch d to the fstop coil 3|! whichacts to reset all mercury switches to their original position. `Incasethe 10.ice track is empty, switch 263 will be closed and a current-willbe established through wire 3|? to post i which leads to the 10 relay(Fig.

e 18) which, when energized will cut oiT the ilow of current to the tencent control box (Fig. 28)

' .and establish a circuit'through switch Uand coin return solenoid. forreturning the coin.

'I'he operation of the 20 delivery unit and .the

in to establish a control circuit to the ten cent control box which Iisoutside the coin box and shown in Fig. 28. At this tima'the startingcoil 30| will be energized for operating shaft 265 and closing switchesa, b, c, d, and 4, and opening switch e. Switches a and b control bothsides of the motor circuit. y When they are both closed,

a circuit is establish-ed through motor 25| for operating the 10c*conveyor for delivering a piece of ice. When the ice falls down thechute the door 256 will be swung for closing mercury switch 259 whichwill establish a circuit through resetting coil 55 to reset theaccumulator to zero and establish a current to the stop coil toreturnswitches a, b, c, d, and e' to the normal inactive position' and themachine will :be ready for another operation.

As switch e is open during the vending operation all 'current to thecoin box is shut oi with the result than; the magnetic reject 3| will bedead, and the flat control bar |56 will be operated by its spring tocause all coins inserted during a vending operation to be returned.

If 20 or 25 were inserted, a similar operation.

would occur except that a different vending unit would be set inoperation.

Now if coins are inserted in the machine for a piece of ice or commoditythat has been sold out, or is not present, the accumulator will be setup. Then if the push button switch is closed, a circuit will beestablished through the proper track switch 263 to the proper relay coil|0, 20 or 25 to disestablish the vending circuit and establishing acircuit through the reset circuit and switch U for resetting theaccumulator and returning the coin or coins.

If improper coins or improper groups of coins e are inserted in the coinbox, the'accumulator will be set up for establishing a circuit throughthe resetting coil 55 and the solenoid return coil for returning thecoins when the pushbutton switch is closed; novcurrent being establishedto a vending circuit.

Should the curent in the coin box be oii", all coins inserted would berejected just as would occur if coins were inserted during a vendingoperation when only the 110 volt circuit that vsupplies the current forthe motors is alive and the 2a volt circuit is cut out by switch e.

From the foregoing, it will be apparent that a the mercury very eicientvending machine has been provided that is provided with all necessarysafeguards to return the customers money if they do not obtain acommodity and which is designed to.` accept a fraction of the total costof an article and facilitate the use of diierent coins.

We are aware that 'many changes maybe made and various details ofconstruction may be' modified without departing from the principles ofthis invention, and we do not propose limiting 1 the patent grantedthereon otherwise than necesthereof and reset to original position bythe stop sitated by the prior vart and appended claims.

We claim as our invention: ,f

1. In a vending machine, a circuit selector including an arm, deliverymeans including a'pluralit`y of article delivery control circuitsconnected to said selector, a selector resetting circuit, coincontrolled means including electrical circuits for moving said arm stepby step and a switch have ing electrical conducting means connected withsaid selector and adapted for forming an electrical connection with saiddelivery ycircuits or said resetting circuit in accordance withthe-position'of said arm.

2. In a .vending machine, a circuit selector including an arm, meansincluding coin controlled circuits for moving said arm step by step, acoin returning means including a switch having a circuit connected withsaid selector and adapted `for forming a connection with said arm, andan arm resetting means having a circuit with a plurality of connectionswith said selector and adapted to be energized when said arm is in oneof a number of predetermined positions.

3. In a vending machine, delivery mechanism including a motor, anelectrical circuit for said motor including a normally open switch,arcoin box, coin controlled electrical means therein including asecondary circuit for controlling said switch, manually operable meansfor establishing said secondary circuit for closing said switch andsimultaneously operable means for shutting off normally live circuittherein, means including an electromagnet in said circuit forcontrolling the descent of coins in said box, vending mechanism,operating means for said vending mechanism, means including said livecircuit for starting said operating means, and switch means in the livecircuit automatically operated forl shutting oi said normally livecircuit when said operating means is started for changing the descent ofcoins in said box. l

5. In a vending machine, a pair of relatively movable switch membersadapted for establishing dierentI circuits, means including an'electromagnet for moving one member by uniform steps according to a unitcoin value, a plurality of dif.- ferent coin controlled electricalcircuits having a common branch containing said electro-magnet and meansin one of said coin controlled circuits for imparting as many separateelectrical impulses to said electro-magnet as there are unit gaging saidcontacts, a. conducting ring surrounding said shaft and insulatedtherefrom and in contact with said arm, and means for rotating saidshaftstep by step including an electromagnet and a plurality of coincontrolled circuits in circuit with said magnet and means for supplyingenergy to said circuits.

9. In a vending machine, vending mechanism including a motor and acircuit therefor having a normally open switch, an electro-magnet forcontrolling said switch, a secondary circuit containing saidelectro-magnet, a normally closed switch in said secondary circuitcontrolled by said electro-magnet, a pair of normally open switches insaid secondary circuit, and coin controlled means for closing one ofsaidy last mentioned switches and manually operated means for closing lthe other for energizing said electro-magnet for closing said. switchand simultaneously opening said closed switch in said secondary circuit.

10. In a vending machine, vending mechanism including a motor and acircuit therefor having a normally open switch, means including anelectro-magnet for controlling said switch, a secondary circuitcontaining said electro-magnet, a normally closed switch in saidsecondary'circuit also controlled by said means, a coin box housingenclosing a portion oi said secondary circuit. coin chutes in saidhousing, means `associated with said coin chutes for controlling thedescent of coins in said chutes including a solenoid in said secondarycircuit, and switch means in said secondary circuit operable for causingenergizetion of said secondary circuit for closing said motor -switchand simultaneously opening said closed switch for the purpose set forth.

ll. In a vending machine, a commodity conveying mechanism, a switchnormally maintained in open position by said commodity, coin con- `coinvalues in the coinv adapted for controlling.

said circuit and a source of energy for said circuits.

6. In' a vending machine, a pair of relatively movable switch membersadapted. for establishing a plurality of diierent circuits, meansincluding an electro-magnet for moving one of said members by uniformsteps according to a unit coin value, a stationary electrical conductorhaving contact with said movable member in all positions, a plurality ofdifferentvalue coin controlled circuits having a common branchcontaining said electro-magnet, means in certain of said coin controlledcircuits for imparting as many separate electrical impulses to saidelectromagnet as there are unit coin values in the coins adapted tocontrol said certain circuits, and a source of energy for said circuits.

7. In a vending machine, an accumulator con-v sisting of an insulatedplate having spaced contacts, a step up arm adapted for engaging saidcontacts, means including an electro-magnet for moving said arm step bystep, a plurality of coin controlled circuits having a common branchcontaining said electro-magnetand means in cer- \taln of said circuitsfor imparting uniform electric impulses through -said electro-magnet inaccordance with the number of unit coin values contained in the coins.adapted to control said circuits and a source of energy for saidcircuits.

8. In a vending machine, an accumulator comprising an insulatedplate-having spaced contacts, a rotatable shaft, an electricalconducting arm secured on said shaft and adapted for en-v trolled meansfor controlling said mechanism including a step up arm, resetting meansfor said arm including an electro-magnet having a connectionwith saidswitch, and adapted to be energized when said switch is closed throughthe absence of commodities for resetting said arm.

,12. In a vending machine, a step up switch member, resetting meanstherefor including an electro-magnet, an electric circuit for said elecgtro-magnet, a normally open switch in said circuit, acoinvcontrolledmeans for operating said step up switch member, a coinreturn gate, means for opening said gate and simultaneously closinglsaid switch for energizing said for the purpose set forth.

13. In a. vending machine, a coin box having a normally live .circuittherein, an accumulator switch in said box including a step up arm,means for imparting uniform steps to said arm includresetting circuit ying an electro-magnet, a coin [controlled circuit ing means dependingupon whether the correct or incorrect amount of coinage Ahas been depos;

ited in said machine.

15. In a vending machine, vending mechanism including'a motor, a step upswitch mechanism including an arm, means for moving said `arm step bystep including coin controlled circuits for establishing a connection tosaid motor, resetting means for said arm, an'electrically operated coindischarge gate and means responsive to the completion of a vendingoperation for operating said resetting mechanism and said gate.

16. In a vending machine, a plurality of vending units, an electricalcontrol for each unit, a coin box having a pluralityof coin chutesadapted for receiving coins of different values, a stationary switchplate having a connection with each of said electrical controls, a stepup switch member adapted for cooperation with said -switch plate forengaging any of said connections, means including an electro-magnet formoving said arm step by step, electrical coin controlled circuits onefor each coin chute having a connection with said electro-magnet forenergizing the same, and

means in certain of said coin controlled circuits,

' same unit coin value including an electro-magnet, a coin controlledcircuit containing said electro-magnet, an electrical impulse producingdrumin said circuit and a motor in said circuit geared to said drum forthe purpose set forth.

22. In a vending machine, a pair of relatively movable switch membersadapted for setting up a control circuit for vending mechanism, meansfor moving one member by uniform steps of a unit coin value including anelectro-magnet, an

. plurality 'of coin controlled circuits connected vto for causinguniform electrical impulses to be imparted to said electro-magnet.

1'1. In a vending machine, a coin box having a plurality of coin chutesfor coins of different values, a coin controlled circuit associated witheach chute, a selector mechanisrmmeans in said circuits for operatingsaid selector,- a rotatable electrical impulse producing drum'connectedin said circuits, and a motor. in said circuits connected to said drumfor rotating the same for the purpose set forth.

18. In a vending machine, a coin box having a plurality of coin chutesadapted for receivingcoins of different values, a coin controlledcircuit associated with each chute, ,a circuit selector mechanism, meansincluding an electro-magnetv and means associated with said drum forauto' l matically breaking the circuit through the motor when the drumhas rotated a predetermined distance.

19. In a vending machine, a coin box having a normally live circuittherein, a plurality of coin chutes in said box and adapted forreceiving coins of diiferent values, a coin controlled circuitassociated with each chute and having connections with said livecircuit, a selector mechanism, means in said circuits for setting saidselector mechanism, in combination with a vending mechanismdncluding 'amotor, a circuit for the motor having a normally open switch, anelectromagnet for controlling said switch, a secondary circuitcontaining said electro-magnet, and said selector mechanism and havingconnections with said live circuit, and a manually operable switch insaid secondary circuit adapted for closing said secondary circuit whensaid selector mechanism has been set.

20. In a vending machine, a coin box having a normally live circuittherein, a coin controlled circuit having connections with said livecircuit, lan accumulator switch including a step up arm, means includingan electro-magnet-in said coin controlled circuit for moving said arm byuniform steps, in combination with a vending mechanism including amotor, means including an electro-magnet for controlling said motor, a

secondary circuit containing said accumulator switch and said lastmentioned electro-magnet and having connections with said live circuit,

said electro-magnet and rotatable impulse producing means connected insaid circuits for imparting spaced impulses to said electro-magnet whena coin has .been inserted in the machine for causing the closingof oneof said circuits.

`23, In a vending machine, a plurality of vending units adapted fordelivering dierent priced articles, an electrical control for each unit,a selector switch having spacedelectrical conductors connected to saidcontrols and means for setting said switch in circuit with any one ofsaid controls comprising an electro-magnet, a plurality of coincontrolled circuits including said ,electro-magnet andan electricalimpulse producing apparatus in said circuits for the purpose set forth.

24. In a vending machine, a vending mechanism, an electrical controltherefor, a secondary circuit containing said control, an accumulatorswitch in said circuit, and comprising an arm. means for moving said armby uniform steps in accordance with a unit coin value including anelectro-magnet, a coin controlled circuit containing said magnet and arotatable impulse .producing device in saidv circuit and a manuallyoperable normally open switch in the secondary circuit adapted forclosing the same when said accumulator switch has beenset.

25.'In a vending machine having a plurality of coin chutes, a pluralityof vending units adapted for delivering different priced articles,v4

plurality of coin controlled circuits, one for each' control, a switchmechanism including an arml adapted to be moved by uniform 'stepsaccording to a unit coin value for establishing one ofthe controlcircuits, means responsive to the insertion of a coin in any of saidcoin chutes/for moving said arm one or more steps and a manuallyoperable switch common to the control circuits for closing each whenestablished by said switch.

27. In a vending machine having a plurality of coin chutes, a pluralityof vending units adapted

